Abstract: Uncured thermosetting resins are loaded with relatively high amounts of solid thermoplastic resin particles to form a resin precursor. The resin precursor is heat treated so as to produce an uncured resin composition wherein the thermoplastic resin particles become substantially dissolved in the thermosetting resin without causing cure of the resin mixture. Heat treatment of highly loaded thermosetting resins in accordance with the present invention provides uncured resin compositions that are well suited for use in fabricating composite structures and particularly prepreg for use in lightning protection surface coatings.

Abstract: A prosthetic device comprising at least one part consisting of a polymer composition comprising at least one polyarylene (P1) and at least one polyarylether selected from the group consisting of poly(aryl ether ketone)s (P2) and poly(aryl ether sulfone)s (P3).

Abstract: The present invention relates to a branched and sulphonated multi block copolymer and an electrolyte membrane using the same, more precisely, a branched and sulphonated multi block copolymer composed of the repeating unit represented by formula 1 and a preparation method thereof, a hydrogenated branched and sulphonated multi block copolymer, a branched and sulphonated multi block copolymer electrolyte membrane and a fuel cell to which the branched and sulphonated multi block copolymer electrolyte membrane is applied. The electrolyte membrane of the present invention has high proton conductivity and excellent mechanical properties as well as chemical stability, so it can be effectively used for the production of thin film without the decrease of membrane properties according to the increase of sulfonic acid group since it enables the regulation of the distribution, the location and the number of sulfonic acid group in polymer backbone.

Abstract: A method for preparing a defunctionalized alkylenedioxyheterocycle polymer or copolymer involves providing a polycarboxylic acid derivative functionalized alkylenedioxyheterocycle polymer or copolymer and transforming the polymer or copolymer into a defunctionalized alkylenedioxyheterocycle polymer or copolymer which is polyhydroxy, polythiol, polyamino, or polycarboxylic acid functionalized alkylenedioxyheterocycle polymer or copolymer. The monomers, homopolymers and copolymers for use in the method are new compositions of matter. The polymers containing polycarboxylic acid derivative functionalized alkylenedioxyheterocycle units are soluble polymers which are defunctionalized to yield insoluble polyhydroxy, polythiol, polyamino, or polycarboxylic acid functionalized alkylenedioxyheterocycle polymers.

Abstract: An intermediate transfer media, such as a belt, that includes a perfluorosulfonic acid/polytetrafluoroethylene polymer with the polymer being chemically bonded to or attached to a polyaniline.

Abstract: An intermediate transfer media, such as a belt, that includes a perfluoropolyether phosphoric acid chemically bonded to a polyaniline.

Abstract: A process for producing a polyphenylene sulfide resin with properties of (1) 0.3 wt % or less in the amount of the volatile gas generated when heated and melted at 320° C. in vacuum for 2 hours, (2) 0.3 wt % or less in the ash content achieved when incinerated at 550° C., (3) 4.0 wt % or less in the residue amount achieved when a solution with 1 part by weight of the polyphenylene sulfide resin dissolved in 20 parts by weight of 1-chloronaphthalene is pressure-filtered by a PTFE membrane filter with a pore size of 1 ?m at 250° C. for 5 minutes, and (4) higher than 500 g/10 min in melt flow rate (according to ASTM D-1238-70: measured at a temperature of 315.5° C. and at a load of 5000 g), by acid-treating a polyphenylene sulfide resin in an acid treatment step and subsequently treating it for thermal oxidation in a thermal oxidation step.

Abstract: A block copolymer comprising at least one segment having an acid group and at least one segment substantially free from acid groups is provided wherein the segment substantially free from acid groups contains a structure of the following general formula (1): Ar1—Z—Ar2—O—Ar3—Om??(1) (wherein, m represents an integer of 10 or more, Ar1, Ar2 and Ar3 represent mutually independently a divalent aromatic group which may be substituted by an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms or an aryloxy group having 6 to 10 carbon atoms, and Z represents —CO— or —SO2—, each Z in the segments representing independently —CO— or —SO2—). The block copolymer exhibits more excellent performances as a polymer electrolyte for fuel cells or the like.

Abstract: The present invention relates to a pentathienyl-fluorene copolymer having structural units represented by formula (I): here R and R? are each independently a substituent or H. The invention also relates to a transistor containing this copolymer. The present invention addresses a problem in the art by providing an electroactive device with exceptionally low hysteresis.

Abstract: The invention concerns a polybenzazole block copolymer suitable for solid polymer electrolyte membranes application comprising: at least one block (B1) comprising recurring units (R), more than 50% of said recurring units comprising at least one benzimidazole group (formula 1a and 1b) and at least one sulfonic acid group (formula 2) [recurring units (R1)]; ?wherein E in formula 1a can be a substituted or non-substituted carbon atom or nitrogen atom, and Q in formula 1 can be a hydrogen atom or a group comprising a sulfonic acid group; and at least one block (B2) comprising recurring units (R?), more than 50% by moles of said recurring units comprising at least one benzazole group chosen among benzoxazole group (formula 3a and 3b) and benzothiazole group (formula 4a and 4b) [recurring units (R2)], ?wherein E? and E? in formula 3a and 4a, respectively, can be a substituted or non-substituted carbon atom or nitrogen atom, and the block (B2) is free from sulfonic acid groups.

Abstract: A curable resinous material, and a method of manufacturing same, the curable resinous material comprising a resinous matrix material (R) with thermoplastic material (TP) distributed therein, some of said thermoplastic material (TP) being substantially fully dissolved in the matrix resin material (R) with other of the thermoplastic materials (TP) being only partially dissolved within the matrix material (R) when the resinous material is cured. The invention also provides a curable resinous material, and a method of manufacturing same, comprising a resinous matrix material (R) and a thermoplastic material (TP) distributed within the resinous matrix material (R) so that at least some of said thermoplastic material (TP) remains partially undissolved in the resinous matrix material (R) when cured.

Abstract: A polymer blend having at least one polysulfide component and at least one polythioether component is disclosed. The polymer blend offers numerous advantages, including the ability to compatibilize formulations based on either polysulfide chemistry or polythioether chemistry alone. Compositions comprising the polymer blend, particularly sealant formulations for use in aerospace applications, are also disclosed, as are multilayer sealant assemblies and methods for repairing the same.

Abstract: A polymeric composition consisting of water-soluble or water-swellable copolymers containing sulfo groups and nonionic polysaccharide derivatives, such as methylcellulose (MC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), methylhydroxyethylcellulose (MHEC), methylhydroxypropylcellulose (MHPC) and welan gum or diutan gum, and the use thereof as an additive in aqueous construction systems based on hydraulic binders, such as cement, lime, gypsum or anhydrite, is described. The composition can also be used in water-based paint and coating systems. The composition according to the invention exhibits a synergistic improvement of the properties and, when used in relatively small amounts, constitutes highly effective water retention agents in such construction and paint systems, which also achieve outstanding air pore stability and tack.

Abstract: Aromatic hydrogenated polymers comprising perfluoropolyether (PIPE) chains bonded to the aromatic rings to form sequences randomly distributed in the polymer structure, having the formula (I): (T1-CF2O—Rf—CF2)n-T3 in which: n is an integer from 1 to 10; T1 is an aromatic group of the backbone of the hydrogenated polymer, or alternatively condensed aromatic groups; T3 may be equal to T1, or alternatively a functional group —COOH or —COF; Rf is a (per)fluoropolyoxyalkylene chain, in which the starting hydrogenated aromatic polymers are obtained by polycondensation, stepwise polyaddition or polyaddition of cyclic monomers in which the ring is formed by at least 3 atoms.

Abstract: The present invention relates to conjugated polymers which comprise both structural units of the formula (1) and also structural units of the formula (2). The materials according to the invention are more readily soluble, display improved air stability and display a smaller voltage increase during prolonged operation when used in a polymeric organic light-emitting diode (PLED) than polymers according to the prior art.

Abstract: The invention relates to a halogen-free flame retardant obtainable by polycondensation of phosphoric monomers with esterifying monomers. The phosphoric monomer is an adduct of 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide (DOPO) and ring-substituted DOPO derivatives to unsaturated carboxylic acids. Monovalent and polyvalent alcohols are used as esterifying monomers. The flame retardant has an average molecular weight of more than 20,000 and an average degree of polymerization Pn of at least 55, and is preferably used for the production of polyamide fibers and polyester fibers by melt spinning.

Abstract: Provided are polymers having pheneylenevinylene units and heteroarylene vinylene units, and methods for making and using the same. Additionally, there are provided heteroarylenevinylene polymers. The polymers are useful in organic electronic devices.

Abstract: A polyarylene ether-based compound according to the present invention includes polymer components represented in general formula (1) and general formula (2): wherein Ar indicates a divalent aromatic group, Y indicates a sulfone group or a ketone group, X indicates H or a monovalent cation species, and Ar? indicates a divalent aromatic group.

Abstract: Compositions comprising blends of polyphenylene and poly(aryl ether sulfone) and methods for making such blends are disclosed. Miscible blends of polyphenylene and poly(aryl ether sulfone) are also disclosed. The blends are useful in numerous applications such as in the preparation of articles and of foams having reduced density.

Abstract: The invention provides a process for synthesising functionalised chain transfer polymers of Formula (1) or Formula (2) using thiocarbonyl thio compounds as chain transfer agents. Why R1 is a moiety comprising a functional group; Q is obtained from an olefinically unsaturated monomer; R? is selected from the group consisting of alkyl, substituted alkyl, alkoxy, substituted alkoxy, an aromatic saturated or unsaturated carbocyclic or heterocyclic ring, optionally substituted with one or more substituents, amino alkyl, cyanoalkyl, hydroxylalkyl, saturated and unsaturated amido; an organometallic species, a polymer chain and any of the foregoing substituted with one or more CN or OH groups; q=an integer of at least 2; p=an integer of at least 1. Chain transfer agents and polymers produced by the method are also provided.

Abstract: The present invention relates to adhesion-improved, curable compositions comprising a cyclic ether, a cyclic thiocarbonate, an amine and a carboxylic acid. A method of making such compositions and their use in adhesives, sealants and coatings are also provided.

Abstract: Polymers and copolymers having units derived from unsubstituted or substituted thieno[3,4-b]furan are disclosed. Also provided are methods of making and using the same.

Abstract: Disclosed herein is a composition comprising a crosslinked organic polymer; wherein the composition has a coefficient of friction that is in a range of ±30% of a coefficient of friction for a composition comprising the same organic polymer that is not crosslinked; and wherein the composition has a lower K factor than a K factor of the composition comprising the same organic polymer that is not crosslinked; the coefficient of friction and the K factor being measured in a thrust washer apparatus as per ASTM D-3702, where the counter stationary surface in the thrust washer apparatus comprises carbon steel having a Rockwell C hardness of 18 to 22 and a 12 to 16 micro-inch surface finish.

Abstract: Substrates, optionally coated with an undercoating, having grafted thereto one or more non-fouling materials are described herein. The non-fouling, polymeric material can be grafted to a variety of functionalized substrate materials, particularly polymeric substrates and/or polymeric undercoatings immobilized on a substrate. The compositions described herein are highly resistant protein absorption, particularly in complex media and retain a high degree of non-fouling activity over long periods of time. The compositions described herein may also demonstrate antimicrobial and/or anti-thrombogenic activity.

Abstract: A method for producing a cyclic polyarylene sulfide, wherein a cyclic polyarylene sulfide is produced by heating a reaction mixture which is composed of at least a linear polyarylene sulfide (a), a sulfidizing agent (b), a dihalogenated aromatic compound (c) and an organic polar solvent (d). This method for producing a cyclic polyarylene sulfide is characterized in that not less than 1.25 liters of the organic polar solvent is used per 1 mole of the sulfur content in the reaction mixture. This method enables to efficiently produce a cyclic polyarylene sulfide, more specifically cyclic oligoarylene sulfide by an economical and simple process in short time.

Abstract: A coating that exhibits resistance to fouling by waterborne contaminants, and permselective membranes having this type of coating, are disclosed. For example, a reverse osmosis membrane is coated with a hydrogel-like composition comprising a combination of a hydrophilic polymer, a polyphenolic compound, and a surfactant, whereby the membrane is made more resistant to fouling by organic contaminants. Particularly beneficial are coating compositions containing amine-based surfactants, these being retained in the hydrophilic coating by polar or ionic binding forces.

Abstract: To provide: a water-soluble amphoteric copolymer having excellent hydrophilicity and high adsorption capability, and capable of exhibiting dramatically excellent dispersibility even under high hardness conditions and being preferably used in a detergent composition application, for example; an application thereof; and a production method of such a water-soluble amphoteric copolymer.

Abstract: Dispersible surface-modified carbon black that is surface-modified by causing a functional group on the surface of the carbon black to be bonded to a diol-modified end-containing polymer through a triisocyanate compound exhibits excellent dispersibility in a non-polar solvent, a low-polar solvent, and a resin. The dispersible surface-modified carbon black is characterized in that a surface functional group of the carbon black is bonded to one isocyanate end group of a triisocyanate compound having three isocyanate end groups, and the remaining two isocyanate end groups are respectively bonded to hydroxyl groups of a diol-modified end-containing polymer.

Abstract: Disclosed is a block copolymer characterized by containing a block (A) containing two or more different repeating units respectively composed of a specific divalent heterocyclic group, and a repeating unit composed of an arylene group, and a block (B) containing a repeating unit composed of an arylene group and a repeating unit composed of a divalent aromatic amine residue. Also disclosed are a composition containing a solvent, a light-emitting material other than the block copolymer, a hole-transporting material other than the block copolymer, an electron-transporting material other than the block copolymer or a combination of two or more of them, in addition to the block copolymer; a light-emitting thin film characterized by containing the block copolymer; and a polymer light-emitting device characterized by having an anode, a cathode and an organic layer containing the block copolymer and arranged between the anode and the cathode.

Abstract: A sulfur-containing cyclic olefin resin comprising a unit represented by the following general formula (1) and having a weight average molecular weight of from 1,000 to 1,000,000. (Here, R1 to R6 each independently represents a hydrogen atom, an alkyl group having from 1 to 20 carbon atoms, an aralkyl group having from 1 to 20 carbon atoms, an aromatic group having from 1 to 20 carbon atoms, a cyano group, an alkoxy group having from 1 to 10 carbon atoms or a heterocyclic compound, further R3 to R6 may be a halogen atom, R3 and R4, and R5 and R6 may form a ring containing carbon, oxygen, sulfur or nitrogen, R7 and R8? each independently represents a hydrogen atom or a methyl group, . . . represents a single bond or a double bond, and l and m each is 0 or 1.

Abstract: The present invention relates to a process of producing polyarylene sulfide (PAS) and PAS resin produced therefrom, and more specifically, to a process of preparing polyarylene sulfide with better thermal properties and luminosity than conventional PAS and the PAS resin produced therefrom, including the steps of: a) melting and mixing a composition including solid sulfur, iodinated aryl compounds, and a polymerization terminator; b) polymerizing the molten mixture of step a) for 1 to 30 hours while increasing the temperature and decreasing the pressure from initial reaction conditions of a temperature of 180 to 250° C. and a pressure of 50 to 450 Torr to final reaction conditions of a temperature of 270 to 350° C. and a pressure of 0.001 to 20 Torr; and c) heating the reaction product of step b) at a temperature of 270 to 350° C. for 1 to 25 hours.

Abstract: The present invention describes polymers containing 1,2-dithiolanes capable of acting as scavengers of free radicals, metals and reactive oxygen species. Also described are methods of synthesizing the antioxidant 1,2-dithiolane derivatives and polymerization thereof to produce biodegradable antioxidant polymers. The antioxidant polymers of the present invention may be used to treat diseases or conditions caused by oxidative stress and other free radical mediated conditions. The antioxidant polymers may also be used for the preparation of antioxidant particulate delivery devices of therapeutic agents.

Abstract: The present invention relates to white-emitting copolymers which are obtained by a combination of blue-, green- and red-emitting repeating units. The copolymers of the invention display better film formation and an improved efficiency when used in polymeric organic light-emitting diodes compared to materials according to the prior art.

Abstract: Conductive polymers are purified using a solid scavenger. The solid scavengers include metal-scavenging functional groups linked to the surface of a particle support material. To improve the functionalization of the support material, the support materials are first treated with sulfuric acid or nitric acid before attaching the molecules containing the metal-scavenging functional groups. The solid scavengers used in the purification methods are more efficient at removing impurities in conductive polymers than existing scavengers.

Abstract: The present invention relates to compositions for producing membranes, the compositions comprising at least 0.1% by weight of highly branched polymer, at least 0.5% by weight of linear polymer and at least 30% by weight of solvent. The present invention additionally describes membranes obtainable from the compositions, and methods of producing these membranes.

Abstract: A conductive polymer composition comprising: a polymer having a HOMO level greater than or equal to ?5.7 eV and a dopant having a LUMO level less than ?4.3 eV.

Abstract: Taggant fibers and methods of use provide for enhanced protection and security when the fibers are used in documents such as land titles, currency, passports and other documents of value. The taggant fibers consist of a minimum of two separate zones with each zone containing a different taggant to emit different wave lengths when excited. The taggants may consist of organic or inorganic compounds as are conventionally known and can be manufactured using for example polymeric materials which can be extruded during the fiber manufacturing process. Authentication of the fibers or documents containing such fibers can be readily viewed using conventional techniques.

Abstract: Ink receptive particles for receiving ink, including: particles P including hydrophilic polymer particles having a ratio of hydrophilic monomer(s) to the total monomer components thereof of from about 10 mol % to about 90 mol %; and hydrophobic polymer particles, attached to at least a part of a surface of the particles P and having a ratio of hydrophilic monomer(s) to the total monomer components thereof of from about 0 mol % to about 10 mol %.

Abstract: The present invention relates to a liquid composition which comprises at least one polymer and at least one ionic liquid, the cations of which are derived from polycyclic amidine bases, and a process for isolating cellulose from cellulose-containing sources using at least one such ionic liquid.

Abstract: Curable compositions have high sensitivity and excellent developability, and further have good storage properties as required. The compositions include a hydroxythiol compound represented by Formula (1) below and a compound with an ethylenically unsaturated double bond: wherein R1 and R2 are each independently a hydrogen atom, a C1-10 alkyl group or an aromatic ring; X is an aliphatic group, an aromatic ring-containing group or a heterocyclic ring-containing group; Y is an ester bond; k and l are each an integer ranging from 1 to 20; m is an integer of 0, 1 or 2; and n is 0 or 1.

Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).

Abstract: Disclosed are particles that have an exterior surface coated with a thin polymeric coating, such as a coating that includes a sulfur-containing polymer. Also disclosed are compositions, such as fuel-resistant sealant and coating compositions, which include such particles. Aerospace vehicles having an aperture at least partially sealed with a sealant deposited from such a sealant composition are also disclosed.

Abstract: Dimercaptan terminated polythioether polymers are disclosed, as are methods for making and using the same.

Abstract: A uniformly premixed sealant is extruded into a packaging form and allowed to pressure equilibrate prior to freezing. Upon warming the sealant begins to cure. The storage of the preformed sealant formulation under cold conditions arrests the activity of cure catalysts and accelerators mixed therethrough. The sealant is readily extruded into a preform shape containing a lightweight filler. A release film is provided to avoid contact with the sealant preformed in a shape during application to a substrate.

Abstract: A polymer blend having at least one polysulfide component and at least one polythioether component is disclosed. The polymer blend offers numerous advantages, including the ability to compatibilize formulations based on either polysulfide chemistry or polythioether chemistry alone. Compositions comprising the polymer blend, particularly sealant formulations for use in aerospace applications, are also disclosed, as are multilayer sealant assemblies and methods for repairing the same.

Abstract: A polymer blend having at least one polysulfide component and at least one polythioether component is disclosed. The polymer blend offers numerous advantages, including the ability to compatibilize formulations based on either polysulfide chemistry or polythioether chemistry alone. Compositions comprising the polymer blend, particularly sealant formulations for use in aerospace applications, are also disclosed, as are multilayer sealant assemblies and methods for repairing the same.

Abstract: A biaxially oriented polyarylene sulfide film is provided having an excellent heat resistance, dimensional stability, electrical properties and chemical resistance, which has an excellent heat moldability, film-forming stability and flatness brought about by the decrease in breaking stress and increase in the elongation at break at 200° C. A biaxially oriented polyarylene sulfide film made of a polyarylene sulfide resin composition having a melt crystallization temperature of not lower than 160° C. and not higher than 220° C., the biaxially oriented polyarylene sulfide film comprising 70 to 99 parts by weight of the polyarylene sulfide and 1 to 30 parts by weight of thermoplastic resin A; the thermoplastic resin A constituting a dispersed phase having an average dispersion diameter of 50 nm to 500 nm; the biaxially oriented polyarylene sulfide film having a breaking stress at 200° C.

Abstract: Polymer combinations which contain: at least one first polymer (PZ) containing zwitterionic structural units; and at least one other polymer (P) carrying charged substituents and capable of bonding with the at least one first polymer (PZ), are applied onto the face surface(s) of solid materials to modify the surface properties thereof.

Abstract: A polymer compound comprising repeating units of the following formulae (I), (II) and (III): (wherein, R1 and R2 represent a hydrogen atom, alkyl group, alkoxy group or the like, R3 and R4 represent an alkyl group, alkoxy group or the like, and a and b represent 0 to 3, and the like.) (wherein, RN1 represents an alkyl group, R5 and R6 represent an alkyl group, alkoxy group or the like, and c and d represent 0 to 3.) ?AR???(III) (wherein, Ar represents a divalent condensed polycyclic hydrocarbon group or the like).

Abstract: The present invention relates to polythiophenes, particularly regioregular head-to-tail poly(3-alkylthiophenes) (HT-PATs), block copolymers made therefrom, and their methods of formation. The present invention provides HT-PATs with well-defined, specific end-groups, functionalization of the defined HT-PATs, and incorporation of end group functionalized HT-PATs into block copolymers with structural polymers. The intrinsically conductive diblock and triblock copolymers, formed from the HT-PATs, have excellent conductivity and low polydispersities that are useful in a number of applications. The block copolymers of the present invention have been found to exhibit conductivities that range from a low of 10?8 S/cm for certain applications to as high as several hundred S/cm or more.